I have a 2013 Duramax with 130k miles. We’re in the middle of a 6k mile trip pulling 15.5klb 5er and I’ve started to get a turbocharger engine code (P2599). This first happened 3000 miles ago when...
Vanished, I just bought a cheap code reader years ago. Not sure I’d recommend the one I have. If I didn’t have one I’d just searc on Amazon, or go into a local Autozone or some such.